Published by:
CGP EDU Academic Team
Published on: August 14, 2026
n arithmetic means are inserted between the numbers 7 and 49. If the sum of these means be 364 then the sum their squares is -
Text Solution
Verified by ExpertsThe correct answer is:
C
A 1 + A 2 + …..+A n = n 
= 364
⇒ n = 13
Hence 49 = 7 + 14d ⇒ d = 3
13 A.m’ s are given by 7 + 3k, k = 1, 2, 3……, 13
∴ Desired sum = 
⇒ 9 
+ 42 
+ 49 
= 11830.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
A series whose n th term is , the sum of r terms will be
If , then is
The sum of the series is
The sum of the series 1.2.3 + 2.3.4 + 3.4.5 + ….. to n terms is
The sum of the first n terms of the series 1 2 + 2.2 2 + 3 2 + 2.4 2 + 5 2 + 2.6 2 + . . . is , wh…
An A.P. whose first term is unity and in which the sum of the first half of any even number of term…